VARIANT help

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I'm a little confused about a method in a SDK that I have. Here's the method:

HRESULT IDgnDictCustom::SnapShotSave( 
Variant IndexedFileName = vtMissing, Variant WaveFileName = vtMissing );

I'm not used to using variants, but what is confusing me, honestly, is the how to use this function correctly. This is expecting the variants as an input, but I didn't think you would use variants this way.

(I'm assuming the filenames are just the path where I want the file saved)

Posted 24-Mar-10 4:13am

pjdriverdude

Updated 24-Mar-10 4:46am

PSK_

v2

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pjdriverdude · Answer 1 · 2010-03-24T04:45:00

I have found this in the header

VB

virtual /* [helpstring][id] */ HRESULT STDMETHODCALLTYPE SnapshotSave(
    /* [optional][in] */ VARIANT IndexedFileName,
    /* [optional][in] */ VARIANT WaveFileName) = 0;

(cleaning it up a bit)

SnapshotSave(/*in*/ VARIANT IndexedFileName, /*in*/ VARIANT WaveFileName)

now, naming the file names still causes an error when I try it (just name it like "c:\test.ibx") What's the proper way to name the variant in this case?